<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<form action="/login" method="post">
  <h4>用户登录页面</h4>
  <p><input type="text" name="username"/></p>
  <p><input type="password" name="password"/></p>
  <p><button type="submit">登录</button></p>
</form>
</body>
</html>